module EXU(
    //上一级段寄存器输入
    input wire clk,
    input wire reset,
    input wire[18:0] alu_op,
    input wire[31:0] alu_src1,
    input wire[31:0] alu_src2,
    output wire mulcal,
    output wire[31:0] alu_res
    );
    alu malu(.clk(clk),.reset(reset),.alu_op(alu_op),.alu_src1(alu_src1),.alu_src2(alu_src2),.alu_result(alu_res),.mulcal(mulcal));
endmodule